A kind of fast seed selection method for watermelon hybridization

A hybrid and watermelon technology, applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of low breeding efficiency, long selection generation, slow breeding progress, etc. Short, fast breeding effect

Active Publication Date: 2017-11-10
开封市农林科学研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a kind of fast seed selection method for watermelon hybridization, to improve the existing watermelon seed selection method to select long generations, slow breeding progress, heavy workload, and low breeding efficiency

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment one of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:

[0029] a. First-generation selection: determine that the target traits are full leaf shape, high round fruit shape, dark green peel, and green rack covered with peel, and select homozygous male parents (full leaf shape, high round fruit shape, green skin, fruit covered with reticulated pattern) and the homozygous female parent (notched leaf shape, high round fruit shape, white and green peel, and green rack covered peel), and the obtained hybrid is planted. After the hybrid plant blooms, the single plant will After the fruit is mature, according to the target traits, select 6 well-developed fruits and keep them as seeds;

[0030] b. Second generation selection:

[0031] b1. The seeds of the 6 fruits obtained in step a are raised respectively. Since the gene logarithms that need to be adjusted to be homozygous are three pairs ...

Embodiment 2

[0043] The present embodiment two of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:

[0044] a. First-generation selection: determine the target traits as leaf-shaped entire margins, fruit-shaped elongated or round, green skin, and pericarp covered with racks, and select homozygous male parents (leaf-shaped entire margins, fruit-shaped high round, and pericarp deep green, peel-covered rack) and the homozygous female parent (notched leaf shape, long fruit shape, white-green peel, and net-covered peel) are crossed, and the obtained hybrid is planted. After the hybrid plant blooms, the single plant Selfing, and then after the fruit matures, according to the target traits, select two well-developed fruits and keep them as seeds;

[0045] b. Second generation selection:

[0046] b1. The seeds of the 2 fruits obtained in step a are raised respectively. Since the gene logarithms that need to be adjusted t...

Embodiment 3

[0056] Embodiment three of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:

[0057] a. First-generation selection: Determine the target traits as full-edge leaf shape and high-round fruit shape, and select homozygous male parents (full-edge leaf shape, high-round fruit shape, green skin, and reticulated peel) and homozygous female parents (notched leaf shape, high round fruit shape, green skin, and reticulated peel) are hybridized, and the obtained hybrid is planted. After the hybrid plant blooms, the individual plant is selfed, and then after the fruit is ripe, according to the target character, Select five well-developed fruits and keep them as seeds;

[0058] b. Second generation selection:

[0059] b1. The seeds of the 5 fruits obtained in step a are raised respectively. Since the gene logarithm that needs to be adjusted to be homozygous is only the pair of leaf shape, the number of seedlings sh...

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Abstract

The invention provides a watermelon hybridization rapid seed selection method, and relates to the technical field of watermelon breeding. The fast seed selection method for watermelon hybridization includes first-generation selection, second-generation selection and third-generation selection. The fast watermelon hybrid seed selection method provided by the invention can effectively shorten the cycle of watermelon seed selection, and the selection generation is short and the selection The progress is fast, the workload is small, and the breeding efficiency is high.

Description

technical field [0001] The invention relates to the technical field of watermelon breeding, in particular to a method for rapidly selecting watermelon hybrids. Background technique [0002] The most commonly used method for watermelon hybrid selection is the "pedigree method", that is, the multi-generation single plant selection method. The breeding process is as follows: firstly cultivate a generation of hybrids after crossing the homozygous male parent and homozygous female parent, and then through more than six generations of gene separation and selection, some target traits with high heritability are self-selected for several generations until Homozygous traits are no longer segregated to achieve homozygous genes, and then select inbred lines with high homozygous traits, and finally use two inbred lines for crossing to form a new hybrid watermelon variety. This method records the numbers and traits of the hybrid combinations, individual plants, and systemic populations ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 霍治邦安水新吴占清程志强侯晟灿
Owner 开封市农林科学研究院
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